TW201427701A - Water-in-oil type emulsion composition - Google Patents

Abstract

An object of this invention is to provide a water-in-oil type emulsion composition, which has high stability, and brings a moist feeling and shiny finishing. The water-in-oil type emulsion composition of this invention is characterized by containing: (a) 1 to 20 mass% polyhydric alcohol fatty acid ester and/or hydrocarbon, (b) 3 to 20 mass% transparent nonvolatile silicone oil which is separated when mixed with the component (a) at 25 DEG C, (c) 0.1 to 5 mass% decyl trisiloxane carboxylic acid zinc, and (d) water.

Description

Oil-type emulsified composition [connection application]

The present application claims the priority of Japanese Patent Application No. 2012-239040, filed on Oct. 30, 2012, which is incorporated herein.

The present invention relates to an aqueous emulsified composition in oil, particularly in connection with an improvement in its feeling of use.

In general, as an aqueous emulsified composition for oil which is widely used as a base for cosmetics and the like, it is known that the more the amount of water is added, the more the feeling of use is improved, and the higher the internal water, the higher the viscosity. As the rise, the composition tends to stabilize. On the other hand, it is not easy to make the water-type emulsified composition containing a large amount of water in the oil, and it is also known that this purpose requires a prescription.

Further, in the oil-in-water emulsified composition, ester oil, eucalyptus oil (such as sulfonated oil, sulfonated oil, etc., referred to herein as eucalyptus oil), hydrocarbon oil, etc. are used depending on the desired effect. A wide variety of oils, but in general, the properties of the oils are not the same. Therefore, two different oil agents are used in combination, and an emulsified composition which is desired to have various properties is also easily detached from the oil by the fact that the oil agents are separated from each other and the stability of the composition is not easily maintained. The combination of oil agents that can be used in combination in the composition is limited.

A problem such as the stability of the water-based emulsified composition in the oil phase and the oil phase associated with each other is that the oil agents having high compatibility are usually combined with each other or the oil phase of the continuous phase is gelled. It is solved by suppressing the fluidity and separation of the entire composition.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] International Publication WO2010/113956

However, it is known that an oil agent in a cosmetic or the like, in particular, an emu oil, has an oil composition which not only imparts luster to the skin but also exhibits an effect of being incompatible with the oil but adhering to the skin, and is coated. The film surface is exuded to form a film to improve the durability of the film (for example, Patent Document 1), but since they are a combination of special oils, they cannot be provided as a gel ( A creamy, water-in-oil emulsified composition.

The present invention has been made in view of the foregoing prior art, and an object thereof is to provide an oil-in-water emulsified composition which has high stability as a formulation, imparts a tender touch, and has a glossy finish and a makeup retaining property. Excellent.

As a result of careful consideration by the inventors of the present invention for achieving the above object, an emulsified composition having an emulsified composition of oil and water containing a specific oil agent and eucalyptus oil under the formulation of zinc decyl trioxanecarboxylate was found. The present invention has high stability as a preparation, imparts a tactile sensation, a glossy finish, and a long-lasting makeup retention due to exudation of emu oil.

That is, the emulsified composition of the present invention is characterized by containing (a) a polyol fatty acid ester and/or a hydrocarbon of 1 to 20% by mass, and (b) separating at a temperature of 25 ° C when mixed with the component (a). Transparent non-volatile eucalyptus oil is 3 to 20% by mass, and (c) zinc decyl trioxane carboxylic acid is 0.1 to 5% by mass, and (d) water.

Further, in the above oil-in-oil emulsified composition, the component (a) is preferably one selected from the group consisting of glycerin having an addition molar number of 4 to 10 and the number of isostearic acid residues being 1 to 4 Polyglyceryl isostearate, glyceryl monoisostearate, neopentyl glycol fatty acid ester, isostearyl glyceryl ether.

Further, in the oil-in-water emulsion composition, it is preferable to further contain a polyfluorene surfactant having an HLB value of 7 or less.

Further, the cosmetic of the present invention is characterized in that it comprises the above-mentioned oil-in-oil emulsified composition.

Further, the cosmetic method of the present invention is characterized in that: (I) a stage of applying a first agent containing a polyol fatty acid ester and/or a hydrocarbon and water, and (II) after the (I) stage, coating thereof On the surface of the cloth, a stage containing a second non-volatile eucalyptus oil and a zinc decyl trioxane carboxylic acid carboxylic acid which are separated when mixed with the component (a) at 25 ° C is applied.

According to the present invention, it is possible to obtain an oil-in-water emulsified composition which contains two different oil components, has high stability, and imparts a touch with a moisturizing feeling, and has a glossy finish and is excellent in makeup.

1‧‧‧(c) ingredients

2‧‧‧(d) ingredients

3‧‧‧(b) ingredients

4‧‧‧(a) and (d)

10‧‧‧ skin

11‧‧‧even layer

12‧‧‧(a) ingredients

13‧‧‧(b)

14‧‧‧Adhesive layer

15‧‧‧Transparent layer

Fig. 1 (A) and (B) show the state of existence of each constituent component in the oil-in-water emulsion composition of the present invention.

Fig. 2 (A) to (C) show changes in the structure of the composition when the oil-in-oil emulsified composition of the present invention is applied to the skin.

Fig. 3 is a photograph showing the appearance of the composition when various gelling agents are used as the component (c) in the oil-based emulsified composition of the present invention.

The emulsified composition of the present invention comprises (a) a polyol fatty acid ester and/or a hydrocarbon, and (b) a transparent non-volatile eucalyptus oil which is separated when mixed with the component (a) at 25 ° C, and (c) Zinc decyl trioxane carboxylate, and (d) water.

Hereinafter, each component will be described in detail.

(a) ingredients

The component (a) is an oil component which is separated from the component (b) when it is mixed with the component (b) at normal temperature (25 ° C). In the component (a) of the present invention, the coloring material or the like is ingested at the time of coating to form an adhesion oil component, and the component (b) which is exuded is rapidly separated. Therefore, the component (a) is preferably a component which is excellent in dispersibility in a color material or the like, and has a high affinity with the skin and is likely to adhere to the skin.

Examples of such a polyhydric alcohol fatty acid ester include glycerol monopalmitate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monooleate, glycerol monolinoleate, and dill. Acid glyceride, glycerol monolaurate, glyceryl dipalmitate, glyceryl distearate, glyceryl dioleate, glyceryl dilinoleate, glyceryl diglyceride, glyceryl tristearate, three Glycerol fatty acid esters such as oleic acid glyceride; diglyceryl monostearate, diglyceryl monooleate, diglyceryl dioleate, monoisostearyl Acid diglyceride, polyglyceryl triisostearate, tetraglyceryl isostearate, tetraglyceride monooleate, tetraglyceryl tristearate, tetraglyceryl pentastearate, tetraglycerol pentaoleate Ester, hexaglyceryl monolaurate, hexaglyceryl monomyristate, hexaglyceryl monostearate, hexaglyceryl monooleate, hexaglyceryl tristearate, hexaglyceryl tetrastearate, pentate Acid hexaglyceride, hexaglyceryl pentaoleate, hexaglyceryl polyricinoleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate Ester, decaglyceryl monooleate, decaglyceryl monolinoleate, decaglyceryl distearate, decaglyceryl diisostearate, decaglyceryl tristearate, decaglyceryl trioleate, five Decaglyceryl stearate, decaglyceryl pentahydroxystearate, decaglyceryl pentastearate, decaglyceryl pentaoleate, decaglyceryl stearate, decaglyceryl heptarate, stearyl Polyglycerol fatty acid esters such as acid decaglyceride, decaglyceryl ten isostearate, decaglyceryl deoleate; tetra(arlic acid/benzoic acid/ethylhexanoic acid) Pentaerythritol ester, tetrakis(ethylhexanoic acid/benzoic acid) pentaerythritol ester, tripolypentyl glycol stearate, hexa(hydroxystearic acid/stearic acid/rosin acid) Pentaerythritol ester, (hydroxystearic acid/isostearic acid) dipivalaerythritol ester, dineopentaerythritol hexahydroxystearate, neopentyl glycol tetraethylhexanoate, tetraisobutyl Fatty acid pentaerythritol ester such as neopentyl glycolate; trimethylolpropane ester of fatty acid, sorbitan laurate, sorbitan palmitate, sorbitan stearate, Sorbitol tristearate, sorbitan oleate, sorbitan trioleate, sorbitan trioleate, sorbitan sorbate, sorbitan trillate A sorbitan fatty acid ester such as an acid ester; sucrose monolaurate, sucrose monomyristate, sucrose monopalmitate, sucrose monostearate, sucrose monocronate, sucrose monooleate, Sucrose fatty acid esters such as sucrose dipalmitate and sucrose distearate; propylene glycol monolaurate, propylene glycol monopalmitate, propylene glycol monostearate, Oleic acid malonate A fatty acid propylene glycol ester such as an alcohol ester; an isostearyl glyceryl ether or the like.

Among the above, in the present invention, as the component (a), in particular, the addition molar amount of glycerol as a polyhydric alcohol is 4 to 10, and the number of isostearic acid residues as a fatty acid is 1 to 4 The use of polyglyceryl isostearate, glyceryl monoisostearate, fatty acid pentaerythritol ester, isostearyl glyceryl ether is preferred.

The above polyglyceryl isostearate is a compound having an average addition molar number of 4 to 10 and a polyglycerol having an isostearic acid added at an unspecified position, and an average addition of a polyglycerol having a molar number of 5 is ideal. . Further, isostearic acid is preferably 2 to 4 in one molecule, and particularly preferably 3 is added. Therefore, in the present invention, the use of polyglyceryl triisostearate-5 is particularly preferable.

Here, the polyglyceryl isostearate is provided by various known synthetic methods, but it is preferable that the distribution of the glycerin addition molar number is narrow or that the impurity of the impurity is small.

Such a polyglyceryl isostearate can be esterified with a fatty acid, for example, according to Patent No. 3,749,881 and JP-A-2006-111539 (having a hydroxyl group of 1200 or less, a hydroxyl group having a hydroxyl group of at least 50% of all hydroxyl groups) Made by the method described for polyglycerol fatty acid esters.

In the case of the fatty acid neopentyl glycol ester, among the above-exemplified, tetrakis(dicarboxylic acid/benzoic acid/ethylhexanoic acid) neopentyl glycol ester and hexahydroxystearic acid dineopentaerythritol ester are preferable.

For the commercial products, for example, "SALACOS P-B822" (manufactured by Nissin Oillio Group Co., Ltd.) and "COSMOL 168M" (manufactured by Nisshin Oillio Group Co., Ltd.) can be used, and these can be suitably used.

Further, examples of the hydrocarbon include liquid paraffin and heavy liquid paraffin. Liquid isoparaffin, polybutene, hydrogenated polybutene, hydrogenated polyisobutylene, hydrogenated polydecene, tetradecene, isohexadecane, isododecane, squalane, squalene, pristine An α-olefin oligomer, a petrolatum or the like which is a semi-solid to liquid oil at room temperature (25 ° C), particularly liquid paraffin or hydrogenated polyisobutylene is preferred.

The blending amount of the component (a) is 1 to 20% by mass, and desirably 2 to 15% by mass based on the total amount of the emulsified composition. When the amount of the component (a) is too large or too small, the touch is sensible, or the gloss finish is defective, and when it is too large, there is a tendency for sticking after application.

(b) ingredients

(b) The emulsified oil which is not volatile at 25 ° C when it is mixed with the component (a) at room temperature (25 ° C), and the emulsified composition of the present invention is applied to the skin or the like. Thereafter, the surface layer is separated from the component (a), and the component which retains the makeup property is particularly improved. In the present invention, the component (b) is preferably a liquid having a viscosity of 25 mPa at a viscosity of 500 mPa ‧ s at a viscosity of 25 ° C.

Here, in the present application, the presence or absence of "separation" between the component (a) and the component (b) is measured by the following conditions.

(measurement conditions)

(a): (b) = 1:1 (mass ratio) using (a) and (b), heating to 90 ° C, stirring and mixing, and then standing still, when the mixture reaches 25 ° C, the boundary is evenly separated into The two phases are regarded as "separated", and are in a translucent state, or a transparent state in which there is no boundary and are regarded as "not separated". Further, when two or more kinds of eucalyptus oils are used as the component (b), the presence or absence of separation differs depending on the blending ratio. Therefore, the presence or absence of separation is confirmed by the blending ratio of the component (b).

The eucalyptus oil of the above component (b) may, for example, be dimethylpolyoxyl Alkane; methylhydrogenpolyoxane; trimethylpentaphenyltrioxane, diphenylpolydimethyloxane, diphenyldecyloxyphenylpolytrimethyloxane, phenyl Methylphenylphosphonium such as polytrimethylphosphoxane or phenylpolydimethyloxane; perfluorooctylethyl/diphenylpolydimethyloxane or the like.

These oils can be used singly or in combination of two or more kinds depending on the form of use of the water-based emulsified composition in the oil of the present invention. For example, when the present invention is used as a foundation or the like, it is dimethyl polyoxyalkylene. For lipsticks, etc., it is desirable to use diphenylpolydimethyloxane or trimethylpentaphenyltrioxane.

The blending amount of the component (b) is 3 to 20% by mass, and desirably 5 to 15% by mass based on the emulsified composition. When the blending amount of the component (b) is less than 3% by mass, the gloss finish is not obtained, and the durability of the coating film is also lowered. Further, when the component (b) exceeds 20% by mass, the stability of the composition tends to decrease.

(c) ingredients

The component (c) is a zinc decyl trioxanecarboxylate having a carboxyl group-modified metal salt of a carboxylic modified silicone (metal soap). The method for obtaining the zinc decyl trioxanecarboxylate used in the present invention is not particularly limited, and the synthesis method thereof includes, for example, a composition containing the compound represented by the following general formula (I): Object,

In the above formula, M is a hydrogen atom or a monovalent metal atom.

(B) A method of mixing an aqueous solution containing zinc ions (Zn ²⁺ ) and (c) an aqueous solution containing hydroxide ions.

In the above general formula (I), M is a hydrogen atom or a monovalent metal atom. Examples of the monovalent metal atom include Li, Na, and K.

The above component (A) can be produced by a known synthesis method, for example, 1,1,1,3,5,5,5-heptamethyltrioxane, and a carboxylic acid trimethylsulfonyl group having an ethylene terminal. Addition reaction in the presence of a platinum-based catalyst, adding a monohydric alcohol of at least 1 mol or more to the trimethylsulfonyl group 1 mol of the protecting group, heating with water or a mixture thereof, and decomposing by adding alcohol The step of deprotection may be obtained, or a commercially available product may be used.

The component (B) may, for example, be an aqueous solution of zinc chloride, zinc sulfate, zinc nitrate, zinc phosphate or zinc hydroxide, and the component (C) may, for example, be sodium hydroxide, potassium hydroxide or hydrogen. An aqueous solution of calcium oxide, magnesium hydroxide, barium hydroxide, zinc hydroxide, aluminum hydroxide, iron hydroxide, copper hydroxide or the like.

When the component (A) is added to the component (B) (aqueous solution), the specific functional group portion of the active portion has an anionic property, and this is reacted with the polyvalent metal cation ionized by the component (B) to form a metal soap. This metal soap is neutralized with the component (C) to form zinc decyltrioxanecarboxylate.

The synthesis examples of the zinc decyl trioxanecarboxylate are listed below, but the present invention is not limited thereto.

<Synthesis Example 1>

In a flask equipped with a stirrer, a thermometer, and a condenser, 1400 g of a 1% aqueous solution of sodium hydroxide (NaOH) was prepared and heated to 70 °C. After 145.5 g of the compound α obtained by the following synthesis method was added at 70 ° C, the mixture was further stirred at this temperature for 1 hour. Thereafter, 231.6 g of a 25% zinc sulfate heptahydrate (ZnSO ₄ .7H ₂ O) aqueous solution was added at 70 ° C, and the mixture was further stirred for 1 hour to precipitate a zinc soap. 65.1 g of a 5% aqueous sodium hydroxide solution was added thereto, and the mixture was stirred at 70 ° C for 1 hour to confirm neutral (complete neutralization reaction), and then cooled and water was removed. The obtained product was heated and dissolved in an ion-exchanged water having a wetting amount, and the operation of separating the water was carried out five times to wash the zinc hydroxide and the by-produced salt (Na ₂ SO ₄ ).

Thereafter, the resultant was dried under reduced pressure at 105 ° C to obtain a transparent to white solid. As a result of the analysis, the above-mentioned substance is a case where the part derived from the compound A is abbreviated as "R ^Si -C ₁₀ H ₂₀ -COO ^- ", and contains the average composition formula "R ^Si -C ₁₀ H ₂₀ -COO ^- (Zn ^{2 +} ) A composite salt composition represented by _5/8 (OH ^- ) _1/4 ”.

In addition, the neutralization reaction formula is as follows.

8R ^Si -C ₁₀ H ₂₀ -COONa+5ZnSO ₄ +2NaOH → 3Zn(OC(=O)-C ₁₀ H ₂₀ -R ^Si ) ₂ +2(R ^Si -C ₁₀ H ₂₀ -(C=O)-O -Zn-OH)+5Na ₂ SO ₄

(Synthesis method of compound α)

In a flask equipped with a stirrer, a reflux condenser, a dropping funnel and a thermometer, 100 g of 1,1,1,3,5,5,5-heptamethyltrioxane, platinum-1,3-divinyl- 0.02 g of a toluene solution of 1,1,3,3-tetramethyldioxane complex was added dropwise to 105 g of trimethyldecyl undecenoate while maintaining a range of 70 to 100 °C. After the completion of the dropwise addition, the mixture was aged at 100 ° C for 2 hours, and then the completion of the reaction was confirmed using a gas chromatograph. The low boiling component was distilled off under reduced pressure. Thereafter, methanol and water were added, and the mixture was aged under reflux for 5 hours to carry out deprotection. Thereafter, the low boiling component was removed under reduced pressure to obtain a compound α. As a result of the analysis, it was confirmed that the compound α is represented by the following structural formula.

The compounding amount of the component (c) is from 0.1 to 5% by mass, and desirably from 0.5 to 3% by mass, based on the emulsified composition. When the component (c) is less than 0.1% by mass, the stability of the composition is insufficient, and when it exceeds 5% by mass, the feeling of use of the composition and the effect of finishing the makeup may be lowered.

(d) ingredients

The water of the component (d) is a component constituting the internal water phase of the water-based composition in the oil, and may contain an aqueous component which can be blended in the aqueous phase. The amount of water to be formulated is not particularly limited as long as the effect of the present invention is not impaired, but when a gel-like (creamy) composition having a more tenderness is prepared, the internal aqueous phase of the composition is used. The ratio is preferably 40% by mass or more, more preferably 40 to 90% by mass, particularly preferably 45 to 90% by mass. The amount of the above formulation corresponds to the amount of the entire aqueous phase containing water and any aqueous component.

Further, in the emulsified composition of the present invention, a cerium-oxygen surfactant as an emulsifier is further blended, and in particular, a dimethylpolysiloxane having a polyoxyalkylene group or a polyglyceryl group is preferably added. Further, the emulsifier has an HLB value (hydrophilic lipophilic balance value) of 7 or less.

Examples of such a ruthenium-oxygen surfactant include PEG-3 polydimethyl siloxane, PEG-9 methyl ether polydimethyl siloxane, PEG-10 polydimethyl siloxane, PEG-9 Polydimethyl methoxyethyl polydimethyl oxane, lauryl PEG-9 polydimethyl methoxyethyl polydimethyl siloxane, PEG / PPG-20 / 22 butyl ether Dimethyl decane, polyglyceryl-3 dioxane polydimethyl siloxane, polyglyceryl-3 polydimethyl methoxyethyl polydimethyl oxane, lauryl polyglycerol Base-3 polydimethyl methoxyethyl polydimethyl oxane or the like. In the present invention, it is desirable to use PEG-10 polydimethyl methoxy oxane, lauryl PEG-9 polydimethyl methoxy ethoxy polydimethyl oxane, and more preferably PEG-10 polydimethyl. Oxane.

The amount of the emulsifier to be formulated is not particularly limited, but is generally preferably from 0.05 to 1.0% by mass.

In the oil-in-water emulsion composition of the present invention, when the skin is applied to the skin at a normal temperature (25 ° C), the two oils in which the component (a) and the component (b) are incompatible with each other are separated, and each of them is separated. The surface layer (transparent phase) and the adhesion layer are respectively formed to exhibit a glossy finish as an oil agent, and also to improve the durability of the coating film, that is, the makeup retention property. On the other hand, in order to maintain the stability of the water-based emulsified composition as an oil, it is necessary to maintain uniform dispersion in the composition until the coating is applied.

Further, the emulsion of the present invention has the effect of the above-mentioned oil component, and the water of (d) component is blended, and the touch is obtained when the coating is wet, but only the oil (a) and (b) are obtained. When the component and the component (d) are simply emulsified, the high fluidity of the water hinders the stable dispersion of the two oil components, and the components are separated in the composition.

Then, the inventors of the present invention determined the use of the zinc decyltrioxanecarboxylate of the component (c) in order to maintain the above two types of oil and water in a state in which the composition is stably and uniformly dispersed.

Fig. 1 is a schematic view showing the state of existence of the components (a) to (d) in the emulsified composition of the present invention. When the constituent components of the present invention are prepared, the enthalpy of the component (c) The zinc trioxanecarboxylate is ingested with water or a component (a) (in the first figure, triisostearic acid polyglycerol) which is associated with water to form a layer. A system in which the emulsified particles are dispersed in the continuous phase of the component (b) (Fig. 1 (A)).

In the above-mentioned system, the emulsified particles (the component (d) and the layered component (d) and the component (a)) ingested in the component (c) are densely packed in the continuous phase, and are almost physically It is impossible to move, so separation or coacervation is not easy to occur. Therefore, the surface of the emulsified composition of the present invention exhibits a stable and uniform monolayer system state of a non-flowing gel property.

Fig. 1(B) is a view showing a state in which water of the component (d) in the structure of Fig. 1(A) is volatilized. When the water is volatilized, the emulsified particles containing the component (a) are movable, and the composition is fluid. Thereby, the (a) and (b) components which are originally incompatible are separated from each other to form the above-mentioned adhesion layer and surface layer. Further, the component (c) in which the water is ingested is transferred to the surface layer together with the component (b) after the water is volatilized, and is confirmed.

Fig. 2 is a view showing changes in the composition after the emulsified composition of the present invention is applied to the skin.

Fig. 2(A) shows a state in which the emulsified composition of the present invention is covered on the skin 10, and shows the composition itself before application. In the state of Fig. 1(A), the components (a) to (d) constitute a uniform layer 11 as shown in Fig. 1(A).

Fig. 2(B) shows a state in which the above composition is applied to the skin. The composition is due to shearing during application (coating) of the skin, dispersion of the emulsified particles, collapse, and (b) component and (c) component 13 and adhesion while the component (d) is volatilized. The component (a) 12 of the skin separates and exudes the surface.

Fig. 2(C) shows a state in which the composition is applied to the skin, and the component (a) is completely separated from the component (b) and the component (c), and the adhesion layer 14 is formed. The two-layer structure of the transparent layer 15.

The transparent layer 15 mainly composed of the component (b) is capable of imparting a glossy finish as an oil agent, and is fixed to the component (c) to contribute to the improvement of the holding property of the surface film.

The component (a) also exhibits an effect such as glossiness of the oil agent, and the component has the property of holding the color material. Therefore, the color material remains in the adhesion layer 14 covered by the transparent layer 15. Therefore, when the color material is formulated in the composition of the present invention, color transfer is unlikely to occur even if it is in contact with the coated surface.

Further, since the transparent layer 15 on the surface promotes the diffusion of light, it can impart a transparent feeling like a plain on the coated surface when used for a foundation or the like.

Further, depending on the combination of the components (a) and (b), it may not be completely separated into two layers as shown in Fig. 2(C) after being applied on the skin, as shown in Fig. 2(B). The case where the film of the components (b) and (c) is partially formed on the film of the component (a). In this case as well, the effect of the above two-layer structure can be sufficiently obtained.

The method for producing the emulsified composition of the present invention is not particularly limited. However, from the viewpoint of being a stable preparation, the composition in which the components (a) and (b) are not uniformly separated in the composition is formed. ideal. In the production method, for example, the components (a) to (c) are mixed under heating at 90 ° C or higher, and the component (d) heated to 90 ° C or higher is added under stirring to be emulsified, if necessary. A method of cooling to form an emulsified composition of a uniform single layer.

Further, in the present invention, in addition to the above components, an oil agent or a wax other than the above, a surfactant, a color material, a powder, a polymer compound, a moisturizer, a fragrance, an antioxidant, a preservative, a cosmetic ingredient, etc. may be used. The components which are generally used, such as a cosmetic or an external preparation for skin, are appropriately formulated within the range which does not impair the effects of the present invention.

The water-based emulsified composition of the present invention is a cosmetic or an external skin The agent or the like can be used as a base in a wide range of applications, and in particular, a suitable feeling of use of the cosmetic is exhibited.

Among them, the application of the cosmetic used for coating on the outer skin is preferable, and examples thereof include a whitening cosmetic liquid, an emulsion, a cream, a homemade facial mask, a foundation, a makeup base, a lipstick, a lipgloss, and an eye shadow. Use of eyeliner, mascara, hair dye, hair treatment, hair foam, hair pack, etc., especially as a foundation.

Further, the above components (a) to (d) are as described above, and all of the components (a) to (d) are used as one emulsified composition, and the components constituting the surface layer on the coated surface may be used. The coated surface constitutes a component of the transparent layer and is used separately. In such use, the composition containing the components (a) and (d) constituting the surface layer is used as the first agent, and the composition of the components (b) and (c) constituting the transparent layer is contained as the second agent. It is preferred that one of the above agents is applied to the coated surface after application of one dose to the skin or the like. A coating film having a two-layer structure of the adhesion layer and the transparent layer shown in Fig. 2(C) can be obtained by using the above-mentioned multiple agents in the same manner as in the case of using one emulsion composition.

[Examples]

The examples of the invention are further described in detail below, but the invention is not limited thereto. The amount of blending is expressed in mass% unless otherwise stated.

Before the description of the examples, the evaluation methods of the compositions used in the respective tests will be described.

<stability of composition>

The state of each composition which was set to stand in a constant temperature bath set at 50 ° C for one week was evaluated on the basis of the following evaluation criteria.

(assessment basis)

○: There was no separation of components, and the state of uniform single layer was maintained.

○ Δ: There is almost no component separation, and a state in which a uniform single layer is maintained is maintained.

△: Separation of some micro components.

×: There is a significant separation of components.

<Watery touch>

The actual use test was conducted by 10 specialized reviewers. Each of the compositions was scored according to the following scores, and the average value of the calculated scores was used as an evaluation value and evaluated according to the following evaluation criteria.

(number of ratings)

5 points: very good

4 points: excellent

3 points: ordinary

2 points: difference

1 point: very bad

(assessment basis)

○: Rating value (average value) 4.0 points or more and 5.0 points or less

△: The evaluation value (average value) is less than 2.5 points and less than 4.0 points.

x: rating (average value) of 1.0 or more and less than 2.5 points

<Glossy finish>

The actual use test was conducted by 10 specialized reviewers. Each of the compositions was scored with a glossy finish, scored according to the following scores, and the average of the calculated scores was used as an evaluation value and evaluated according to the following evaluation criteria.

(number of ratings)

5 points: very good

4 points: excellent

3 points; ordinary

2 points: difference

1 point; very poor

{assessment basis)

○: Rating value (average value) 4.0 points or more and 5.0 points or less

△: The evaluation value (average value) is less than 2.5 points and less than 4.0 points.

×: The evaluation value (average value) is 1.0 or more and less than 2.5 points.

<makeup>

The actual use test was conducted by 10 specialized reviewers. For each of the compositions, the makeup retention was scored according to the following scores, and the average of the calculated scores was used as the evaluation value and evaluated according to the following evaluation criteria.

5 points: very good

4 points: excellent

3 points: ordinary

2 points: difference

1 point: very bad

(assessment basis)

○: Rating value (average value) 4.0 points or more and 5.0 points or less

△: The evaluation value (average value) is less than 2.5 points and less than 4.0 points.

×: The evaluation value (average value) is 1.0 or more and less than 2.5 points.

According to the prescription shown in the following Table 1, the composition of each test example was produced, and according to the above-mentioned stability, the touch was used, the gloss was finished, the makeup was evaluated, and the components (a) and (b) were bet. Preparation of ingredients. The results are shown in Table 1 below.

(Production method)

The components (b) and (d) are added to the component (a), mixed under heating, and then mixed with the component (b) under heating. In the resulting mixture, slowly add under heating and stirring The component (d) is added to obtain an oil-in-oil emulsified composition (foundation).

As shown in Table 1, the prescriptions of Test Examples 1-1 to 1-5 using various polyol fatty acid esters or hydrocarbons as the component (a) all have a stable creamy shape with a touch of a tender feeling. The composition is emulsified, and the coated surface is separated into two layers to exhibit a glossy finish and excellent makeup.

On the other hand, in Test Example 1-6 of the triisostearic acid polyglyceryl ester-2 in which the oil component which is completely compatible with the component (a) is blended as the component (b), the composition is uniform and the water is mixed. It has a tender touch, but after the coating, the oil does not separate into two layers, and the surface layer of the eucalyptus oil is not formed, so the makeup is poor.

Further, in Test Example 1-7 in which the component (b) was not blended, as in Test Example 1-6, the composition was uniform, and there was also a watery touch as an aqueous emulsified composition in oil, but there was no separate surface layer. Therefore, the makeup is poor.

As described above, in the present invention, a fatty acid polyol ester and/or a hydrocarbon is used as the component (a), and as the component (b), a transparent one which is separated when mixed with the component (a) at 25 ° C is used. Volatile oils are suitable.

The emulsified compositions of Test Examples 2-1 to 2-5 in which the type of the gelling agent to be used was changed according to the formulation shown in Table 2 below were prepared, and the stability of each of the compositions after storage was evaluated. The photographs of the appearances of the compositions of Test Examples 2-1 to 2-5 after storage for 5 days in an environment of 50 ° C are shown in Figs. 3 to A, respectively.

(Production method)

The components (b) and (d) are added to the component (a), mixed uniformly under heating, and then mixed with the component (b) under heating. In the obtained mixture, the component (d) was gradually added under heating and stirring to obtain an oil-in-oil emulsified composition (foundation).

<gelling agent>

Test Example 2-1 (Fig. 3A): Unmixed gelling agent (ion exchange water)

Test Example 2-2 (Fig. 3B): palmitic acid dextrin

Test Example 2-3 (Fig. 3C): (arric acid/eicosane diacid) glyceride

Test Example 2-4 (Fig. 3D): Microcrystalline wax 7: Paraffin 93 or microcrystalline wax (Pamic ( ) 160, made by Nikko Rica)

Test Example 2-5 (Fig. 3E): zinc decyl trioxanecarboxylate

As shown in Fig. 3, the composition of the test examples other than Test Example 2-5 using zinc decyltrioxanecarboxylate was separated by an oil agent, and it was not possible to maintain a uniform single layer state.

Therefore, in the oil-type emulsified composition of the oil of the present invention, in order to maintain a stable state in which the oil components which are separated from each other are uniformly dispersed, it is preferable to formulate zinc decyltrioxanecarboxylate.

Hereinafter, the examples of the invention are enumerated, but the invention is not limited thereto. In the composition of any of the prescription examples, excellent stability (50° C. for 1 week) was maintained, and the touch was lustrous, the gloss was finished, and the makeup was excellent.

<Examples 1 to 6: Foundation>

(Production method)

Add (3) and (5) to (1) and (2), mix well under heating, and add Mix with heat under (3). In the obtained mixture, (5) was gradually added under heating and stirring to obtain an oil-in-oil emulsified composition (foundation).

<Examples 7 to 12: Emulsion Pact>

(Production method)

After mixing (1) to (4), (7) to (19) under heating, adding to the mixture of (5) and (6) which are additionally heated and mixed, and uniformly mixing under heating, in the above mixture The mixture of (20) to (22) was gradually added under heating and stirring to obtain an emulsified composition (emulsified foundation).

<Examples 13 to 16: Liquid Foundation>

(Production method)

(1) to (4), (7) to (18) are mixed under heating and added to another heated mixture. In the mixture of (5) and (6), it is uniformly mixed under heating. Thereafter, the mixed liquid of (19) to (24) was gradually added under heating and stirring in the above mixture to obtain an emulsified composition (liquid foundation).

<Example 17; Liquid Foundation>

(Production method)

After mixing (1), (4) to (9) under heating, it is added to the mixture of (2) and (3) which are additionally heated and mixed, and uniformly mixed under heating. Thereafter, (10) was gradually added under heating and stirring in the above mixture to obtain an emulsified composition (liquid foundation).

<Example 18: Eye shadow>

(Production method)

After mixing (1), (4) to (13) under heating, it is added to the mixture of (2) and (3) which are additionally heated and mixed, and uniformly mixed under heating. Thereafter, (14) was gradually added under heating and stirring in the above mixture to obtain an emulsified composition (eye shadow).

<Example 19: Temporary Hair Coloring>

(Production method)

After mixing (1), (4) to (8) under heating, it is added to the mixture of (2) and (3) which are additionally heated and mixed, and uniformly mixed under heating. Thereafter, (9) was gradually added under heating and stirring in the above mixture to obtain an emulsified composition (temporary hair dye).

<Example 20: Mascara>

(Production method)

After mixing (1) to (5), (8) to (10) under heating, it is added to the mixture of (6) and (7) which are additionally heated and mixed, and uniformly mixed under heating. Thereafter, the mixed liquid of (11) to (15) was gradually added under heating and stirring in the above mixture to obtain an emulsified composition (mascara).

<Example 21: Lipstick>

(Production method)

After (1) to (5), (8) to (10), (13), and (14) are mixed under heating, the mixture is additionally heated and mixed (6) and (7), and uniformly mixed under heating. . Thereafter, the mixed liquid of (11) and (12) was gradually added under heating and stirring to obtain an emulsified composition (lipstick).

Since the picture in this case is the test result, it is not a representative figure of this case.

Therefore, there is no designated representative map in this case.

Claims (5)

An oil-based emulsified composition comprising: (a) a polyol fatty acid ester and/or a hydrocarbon of 1 to 20% by mass, and (b) a separation when mixed with the component (a) at 25 ° C Transparent non-volatile eucalyptus oil is 3 to 20% by mass, and (c) zinc decyl trioxane carboxylic acid is 0.1 to 5% by mass, and (d) water. The oil-in-water emulsion composition according to claim 1, wherein the component (a) is selected from the group consisting of glycerol having an addition molar number of 4 to 10 and the number of isostearic acid residues is 1 to 4 polyglyceryl triisostearate, glyceryl monoisostearate, neopentyl glycol fatty acid ester, isostearyl glyceryl ether. The oil-in-water emulsified composition according to claim 1, wherein the oxime surfactant having an HLB value of 7 or less is further contained. A cosmetic material characterized by comprising the oil-in-water emulsified composition according to any one of claims 1 to 3. A cosmetic method comprising: (I) a stage of coating a first agent comprising a polyol fatty acid ester and/or a hydrocarbon and water, and (II) after (I), on a coated surface thereof A stage containing a second non-volatile eucalyptus oil and a zinc decyl trioxane carboxylic acid carboxylic acid which are separated when mixed with the component (a) at 25 ° C is applied.